Configuration Guide DHCP Snooping Commands
The following example enables DHCP Snooping to support the function of processing Relay
requests.
Ruijie# configure terminal
Ruijie(config)# ip dhcp snooping check-giaddr
Ruijie(config)# end
Displays the configuration information of the
DHCP Snooping.
14.5 ip dhcp snooping database write-delay
Use this command to configure the switch to write the dynamic user information of the DHCP
Snooping binding database into the flash periodically.
Use the no form of this command to restore the default setting.
ip dhcp snooping database write-delay time
no ip dhcp snooping database write-delay
The interval at which the system writes the dynamic user information
of the DHCP Snooping database into the flash, in the range from 600
to 86,400 in the unit of seconds
This function is disabled by default.
Global configuration mode
This function writes user information into flash in case of loss after restart. In that case, users need to
obtain IP addresses again for normal communication.
Too fast writing will reduce flash durability.
The following example sets the interval at which the switch writes the user information into the flash to
3,600 seconds.
Ruijie# configure terminal
Ruijie(config)# ip dhcp snooping database write-delay 3600
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